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will only run with choke on

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One of our CRF50s will only run with the choke on. It has a TB 88kit. Starts fine buty shuts off as soon as choke is off. Any ideas?

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Go buy a new one, probably be easier then cleaning it. I tried to clean mine and ended up giving up and went and bought a new one. :thumbsup:

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intake leak? You're running tooo lean. that's why you need the choke to richen the mixture

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well it has to be a pilot jet, or fuel delivery issue, since it runs with the choke on.. THe pilot jet is extremely small, way smaller then bigger bikes, so its harder to clean

When is the last time the valves were adjusted? They like to go out of adjustment often with 88 kits, and then the bike wont idle good

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